Question

The work done on a body is $10J$. If the displacement is $10m$ in the direction of the force, then the force applied is .

• A. 1 N
• B. 5 N
• C. 10 N
• D. 15 N

Answer 1

The correct option is A 1 N

Given:
Work done, $W=10J$
Displacement, $s=10m$

Let the force applied be $F$
From definition of work:
$W=Fs$.
$F=\frac{W}{s}$
$F=\frac{10J}{10m}=1N$

Therefore, the force applied is $1N$.